as stated .. on driving you get to a water temperature saturation point .. the water can no longer be cooled by the rad for it ..

so you need a bigger rad that holds more water .. etc etc etc

they get hotter if not moving / slow speeds ...

had one on my sII .. worked really well in the colder weather .. summer was a waste of time tho .. got a grs fitted and never had any act issues.


and the fridge idea works .. i tried using 2 peltier devices on a metal container .. but once again you get to a point where even they can not cool the return water quickly enough.. did have an improved design but never the money to be able to test it